Good idea: It'll get rid of frivolous lawsuits.
Using improperly equipped cheap angle grinders in mechanisms designed to cause the grinding/cutting wheel to shatter violently in a known trajectory meant for maiming, all automated, as part of your home security measures as countermeasures against intruders.
"I wasn't counting cards, I was cheating."
"Ugh. you give me hives."
"It's Tee-revor time!!!"